Electronic apparatus and method for displaying graphical object thereof

ABSTRACT

An electronic apparatus is provided. The electronic apparatus includes a sensor configured to sense an input of a touch pen and output a signal corresponding to the input of the touch pen, a display configured to include a first layer and a second layer, display a graphical object in the first layer, and display a handwriting image based on the input of the touch pen in the second layer, and a controller configured to control the display to change a display direction of the graphical object displayed in the first layer based on the signal output from the sensor.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application claims the benefit under 35 U.S.C. §119(a) of a Koreanpatent application filed on Nov. 28, 2014 in the Korean IntellectualProperty Office and assigned Serial number 10-2014-0168323, the entiredisclosure of which is hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure relates to an electronic apparatus and a methodfor displaying a graphical object thereof.

BACKGROUND

With the recent increase in the popularity of a portable terminal, thereis a growing need for a method of intuitionally performing aninput/output operation. However, a size of an electronic apparatus, suchas, the portable terminal, is limited for portability, and thus, a sizeof a display for displaying information is relatively small as comparedwith a display of a common television (TV), a monitor, etc. For thisreason, an input method of the portable terminal has developed from auser interface (UI) method of the related art of using an input means,such as, a keyboard, a keypad, a mouse, etc., into an intuitional UImethod of inputting information by using a voice or directly touching ascreen with a hand or a touch pen for various users. Specially, a useris able to perform more accurate touch or input a handwriting by using atouch pen. A direction of the handwriting may differ from a displaydirection of a graphical object. Accordingly, there is a desire fordiverse methods for automatically arranging the direction of handwritingusing a touch pen to correspond to the display direction of thegraphical object.

The above information is presented as background information only toassist with an understanding of the present disclosure. No determinationhas been made, and no assertion is made, as to whether any of the abovemight be applicable as prior art with regard to the present disclosure.

SUMMARY

Aspects of the present disclosure are to address at least theabove-mentioned problems and/or disadvantages and to provide at leastthe advantages described below. Accordingly, an aspect of the presentdisclosure is to provide an electronic apparatus and a method fordisplaying a graphical object thereof, and more particularly, to amethod of recognizing a handwriting direction by using an angle betweena touch pen and a display and automatically changing a display directionof a graphical object displayed in the display to a horizontal directionor a vertical direction based on the handwriting direction.

In accordance with an aspect of the present disclosure, an electronicapparatus is provided. The electronic apparatus includes a communicatorconfigured to receive a signal from an external source, a displayconfigured to display a graphical object, a sensor configured to sensean input of a touch pen and output a signal corresponding to the inputof the touch pen, and a controller configured to determine a displaydirection of the graphical object displayed in the display based on thesignal output from the sensor. The controller may determine tiltinformation of the touch pen based on the signal. The controller mayreceive a signal output from the touch pen through the communicator anddetermine the tilt information of the touch pen based on the signaloutput from the touch pen. The controller may determine a tilt directionof the touch pen based on tilt information of the touch pen anddetermine the display direction of the graphical object based on thetilt direction of the touch pen. The controller may control the displayto change the display direction of the graphical object so that the tiltdirection of the touch pen and the display direction of the graphicalobject become opposite to each other. The controller may control thedisplay to display the graphical object in a first layer and display ahandwriting image displayed based on the input of the touch pen in asecond layer. The controller may control the display to fix the secondlayer and change the display direction of the graphical object in thefirst layer based on the tilt direction of the touch pen.

In accordance with another aspect of the present disclosure, anelectronic apparatus is provided. The electronic apparatus includes asensor configured to sense an input of a touch pen and output a signalcorresponding to the input of the touch pen, a display configured toinclude a first layer and a second layer, display a graphical object inthe first layer, and display a handwriting image based on the input ofthe touch pen in the second layer, and a controller configured tocontrol the display to change a display direction of the graphicalobject displayed in the first layer based on the signal output from thesensor. The controller may determine a tilt direction of the touch penbased on the signal output from the sensor and control the display tochange the display direction of the graphical object displayed in thefirst layer according to the tilt direction of the touch pen. Thecontroller may control the display to maintain a direction of the secondlayer without change despite a direction of the first layer beingchanged.

In accordance with another aspect of the present disclosure, a methodfor displaying a graphical object of an electronic apparatus isprovided. The method includes displaying a graphical object in adisplay, sensing an input of a touch pen, and changing a displaydirection of the graphical object displayed in the display based on theinput of the touch pen. The changing the display direction of thegraphical object may include determining tilt information of the touchpen based on a signal corresponding to the input of the touch pen.

The method may further include receiving a signal output from the touchpen. The tilt information of the touch pen may be determined based onthe signal. The changing of the display direction of the graphicalobject may include determining a tilt direction of the touch pen basedon tilt information of the touch pen and determining the displaydirection of the graphical object based on the tilt direction of thetouch pen. The changing of the display direction of the graphical objectmay include changing the display direction of the graphical object sothat the tilt direction of the touch pen and the display direction ofthe graphical object become opposite to each other. The method mayfurther include displaying a handwriting image based on the input of thetouch pen. The graphical object may be displayed in a first layer, andthe handwriting image displayed based on the input of the touch pen maybe displayed in a second layer. The changing of the display direction ofthe graphical object may include fixing the second layer and changingthe display direction of the graphical object in the first layer basedon the tilt direction of the touch pen.

In accordance with another aspect of the present disclosure, a methodfor displaying a graphical object of an electronic apparatus isprovided. The method includes displaying a graphical object in a firstlayer, sensing an input of a touch pen, displaying a handwriting imagein a second layer based on the input of the touch pen, and changing adisplay direction of the graphical object displayed in the first layerbased on the input of the touch pen. The changing of the displaydirection of the graphical object may include determining a tiltdirection of the touch pen based on the input of the touch pen andchanging the display direction of the graphical object displayed in thefirst layer according to the tilt direction of the touch pen. The methodmay further include maintaining a direction of the second layer withoutchange despite the display direction of the graphical object beingchanged.

According to the above-described various embodiments, a method fordisplaying a graphical object of an electronic apparatus changes adisplay direction of a graphical object automatically based on ahandwriting direction, thereby providing a user with convenience.

Other aspects, advantages, and salient features of the disclosure willbecome apparent to those skilled in the art from the following detaileddescription, which, taken in conjunction with the annexed drawings,discloses various embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments of the present disclosure will be more apparent from thefollowing description taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 is a block diagram illustrating a structure of an electronicapparatus according to an embodiment of the present disclosure;

FIGS. 2A and 2B are views provided to describe an embodiment of changinga display direction of a graphical object according to a tilt directionof the touch pen according to an embodiment of the present disclosure;

FIGS. 3A and 3B are views illustrating a handwriting input layer and agraphical object display layer according to an embodiment of the presentdisclosure;

FIGS. 4A and 4B are views provided to describe an embodiment ofinputting handwriting into a content having an input field by using thetouch pen according to an embodiment of the present disclosure;

FIGS. 5A and 5B are views provided to describe an embodiment of draggingan edge area of the display where a content is displayed to display amemo window according to an embodiment of the present disclosure;

FIGS. 6A and 6B are views provided to describe an embodiment ofidentifying a user through recognition on a hand wring image andautomatically setting a pen style according to an embodiment of thepresent disclosure;

FIGS. 7A, 7B, and 7C are views provided to describe an example of aninteraction of the touch pen while a document image is displayed in thedisplay according to an embodiment of the present disclosure;

FIG. 8 is a view provided to describe an example of a hoveringinteraction of the touch pen according to an embodiment of the presentdisclosure;

FIGS. 9A and 9B are views provided to describe a method for applying aformat by using the touch pen according to an embodiment of the presentdisclosure;

FIGS. 10A and 10B are views provided to describe a method for applying aformat according to an embodiment of the present disclosure;

FIG. 11 is a view provided to describe a method for setting a userformat according to an embodiment of the present disclosure;

FIGS. 12A, 12B, and 12C are views provided to describe an embodiment ofmagnifying a format menu of the touch pen according to a magnificationof a screen according to an embodiment of the present disclosure;

FIGS. 13A, 13B, and 13C are views provided to describe a method forconverting a handwriting input mode and a gesture input mode by usingthe touch pen according to an embodiment of the present disclosure; and

FIG. 14 is a flowchart provided to describe a method for changing adisplay direction of a graphical object displayed in the display basedon an input of the touch pen.

Throughout the drawings, it should be noted that like reference numbersare used to depict the same or similar elements, features, andstructures.

DETAILED DESCRIPTION

The following description with reference to the accompanying drawings isprovided to assist in a comprehensive understanding of variousembodiments of the present disclosure as defined by the claims and theirequivalents. It includes various specific details to assist in thatunderstanding but these are to be regarded as merely exemplary.Accordingly, those of ordinary skill in the art will recognize thatvarious changes and modifications of the various embodiments describedherein can be made without departing from the scope and spirit of thepresent disclosure. In addition, descriptions of well-known functionsand constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are notlimited to the bibliographical meanings, but, are merely used by theinventor to enable a clear and consistent understanding of the presentdisclosure. Accordingly, it should be apparent to those skilled in theart that the following description of various embodiments of the presentdisclosure is provided for illustration purpose only and not for thepurpose of limiting the present disclosure as defined by the appendedclaims and their equivalents.

It is to be understood that the singular forms “a,” “an,” and “the”include plural referents unless the context clearly dictates otherwise.Thus, for example, reference to “a component surface” includes referenceto one or more of such surfaces.

The terms ‘include’ and ‘may include’ used in the following descriptionsrefer to the disclosed function, operation, or element and do not limitany additional one or more functions, operations, or elements. Inaddition, in the present disclosure, the terms ‘include’ and ‘have’ showexistence of a feature, number, operation, element, part, or combinationthereof disclosed herein and are not intended to exclude thepossibilities of combination or addition of one or more features,numbers, operations, elements, parts or combination thereof.

The term ‘or’ in the following descriptions includes all forms ofcombinations of the words used with the term. For example, ‘A or B’ mayinclude A, may include B, or may include both of A and B.

In the present disclosure, relational terms, such as ‘first’ and‘second,’ may modify various elements but do not limit the elements. Forexample, the terms are used to distinguish one entity from anotherentity, without necessarily implying any actual relationship or orderbetween such entities. For example, both of the first user device andthe second user device refer to a user device and represent distinctuser devices, respectively. As an example, the first element may becalled the second element without deviating from the scope of right ofthe present disclosure, and vice versa.

When it is described that an element is ‘connected’ to anothercomponent, the element may be connected to another element directly, butin this case, it may be understood that any other element may existbetween the element and another element. By contrast, when it isdescribed that an element is ‘directly connected’ to another element, itmay be understood that any other element does not exist between theelement and another element.

Unless otherwise defined, all terms used in the following descriptions,including technical or scientific terms, have the same meaning ascommonly being understood by a person having ordinary skill in the artto which the present disclosure pertains (hereinafter referred to as‘those skilled in the art’). The terms defined in a common dictionaryshould be interpreted as the contextual meaning in the related art.Unless obviously defined that way herein, the terms do not understood asan ideal or excessively formal meaning.

In the following descriptions, ‘module’ or ‘unit’ performs at least onefunction or operation and may be realized as hardware, software, orcombination thereof. In addition, a plurality of ‘modules’ or ‘units’may be integrated into at least one module and may be realized as atleast one processor (not shown) except for ‘module’ or ‘unit’ that needsto be realized as specific hardware.

Hereinafter, the various embodiments of the present disclosure will bedescribed in detail with reference to the accompanying drawings. In thefollowing description, like drawing reference numerals are used for thelike elements, even in different drawings, and the overlappeddescription will be omitted.

FIG. 1 is a block diagram illustrating a structure of an electronicapparatus 100 according to an embodiment of the present disclosure.

Referring to FIG. 1, the electronic apparatus 100 may include a display101, a controller 103, a sensor 105, and a communicator 107. The display101 may display a graphical object and perform a display function withrespect to output information output from the electronic apparatus 100.The graphical object may be a moving image, a still image, an electronicbook (E-book) screen, a web page, a content, and a graphic userinterface (GUI).

The sensor 105 may perform various input functions by a user. Inaddition, the sensor 105 may sense diverse inputs including asingle-touch input, a multi-touch input, a drag input, a handwritinginput, or a drawing input of the user by using a variety of objects,such as, a finger, a pen, etc. The sensor 105 may be provided in a formof a module realized as a single body with the display 101. In addition,the sensor 105 may be realized by using one panel which is capable ofsensing both of an input of a finger and an input of a touch pen 201 ormay be realized by using two panels, such as, a touch panel of sensing afinger input and a touch pen recognition panel of sensing a touch peninput. Hereinafter, there is provided the description on an example ofthe sensor 105 realized with two panels, the touch panel of sensing afinger input and the touch pen recognition panel of sensing a touch peninput.

The display 101 may be a panel such as liquid crystal display (LCD),active matrix organic light emitting diodes (AMOLED), etc. The display101 may display diverse screens according to various operationalstatuses, execution of an application, and a service of the electronicapparatus 100. The display 101 may include a touch panel. The touchpanel may occupy a certain space in a lower part of the display 101. Forexample, the touch panel may occupy a space to cover a display area ofthe display 101.

The touch panel may sense a user touch input. For example, the touchpanel may be realized as a touch film, a touch sheet, a touch pad, etc.The touch panel senses a touch input and outputs a touch event valuecorresponding to the sensed touch signal. In this case, information onthe sensed touch signal may be displayed in the display 101. The touchpanel may receive a manipulation signal according to the user touchinput through various input means. For example, the touch panel maysense a touch input using a user body (for example, a finger) or aphysical tool. According to an embodiment, the touch panel may berealized as a capacitive-type touch panel. In case of thecapacitive-type touch panel, the touch panel consists of a glass ofwhich both surfaces are coated with thin metal conducting material (forexample, indium tin oxide (IPO)) for enabling a current to flow alongthe surfaces of the glass and is coated with a dielectric substance forstoring a charge. In response to a surface of the touch panel beingtouched by an object, a certain amount of charges move to a contactpoint by static electricity. The touch panel recognizes variation of thecurrent according to the movement of the charge to sense a touched pointand tracks a touch event. In this case, the touch event occurred in thetouch panel may be generated by a finger of a human being in many casesbut may be generated by other object which may cause change ofcapacitance, for example, a conductive object which may cause change ofcapacitance.

The touch pen recognition panel senses an access input or touch input ofthe touch pen 210 using a pen for touch of the user (for example, astylus pen, a digitizer pen, etc.) and outputs a touch pen access eventor a touch pen touch event. The touch pen recognition panel may berealized in an electro-magnetic resonance (EMR) method. In addition, thetouch pen recognition panel may sense a touch input or an access inputaccording to variation of strength of an electromagnetic field by theaccess or touch of the touch pen 201. To be specific, the touch penrecognition panel may include an electromagnetic induction coil sensor(not shown) having a grid structure where a plurality of loop coils arerespectively arranged in a predetermined first direction and a seconddirection which intersects the first direction and an electronic signalprocessor (not shown) which sequentially supplies alternating current(AC) signals having a certain frequency to the respective loop coils ofthe electromagnetic induction coil sensor. In response to the touch pen201 in which a resonant circuit is embedded being located around theloop coils of the touch pen recognition panel, a magnetic fieldtransmitted from the loop coils generates the current based on mutualelectromagnetic induction in the resonant circuit in the touch pen 201.According to the generated current, an induction magnetic field isgenerated from the coils constituting the resonant circuit in the touchpen 201. The touch pen recognition panel detects the induction magneticfield from a loop coil in a signal receiving status and senses an accessposition or a touch position of the touch pen 201. The touch penrecognition panel may sense an access or touch of an object which maygenerate the current based on the electromagnetic induction. Accordingto an embodiment, the touch pen recognition panel is exclusively usedfor the recognition on the access or touch of the touch pen 201. Thetouch pen recognition panel may be installed at a certain position of aterminal and may have an activated state by occurrence of a particularevent or by default. In addition, the touch pen recognition panel mayoccupy a certain space in the lower part of the display 101. Forexample, the touch pen recognition panel may occupy a space to cover adisplay area of the display 101.

The communicator 107 may receive a signal from an external source of theelectronic apparatus 100. Specially, in case of the electronic apparatus100 supporting a mobile communication function, the communicator 107 mayinclude a mobile communication module. The communicator 107 may performparticular functions of the electronic apparatus 100 requiring acommunication function, for example, a chat function, a messagetransmission/reception function, a call function, etc. In addition, thecommunicator 107 may receive a signal from an external device such asthe touch pen 201. The touch pen 201 may transmit information on a tiltof the touch pen 201 to the electronic apparatus 100 through thecommunicator 107.

The controller 103 includes various elements for receiving an input ofthe handwriting using the touch pen 201 and displaying the receivedhandwriting. The controller 103 may control a signal processingoperation, a data processing operation, and other functions for thehandwriting input based on the elements. For example, the controller 103may provide a displayed application with a handwriting input layer andcontrol the display 101 to convert a handwriting image input by the userinto text on the provided handwriting input layer and insert and displaythe text into an input filed.

The controller 103 may determine a display direction of a graphicalobject displayed in the display 101 based on a signal output from thesensor 105 in response to the touch pen input being input into thedisplay 101. To be specific, the controller 103 may determine tiltinformation of the touch pen 201 based on the signal output from thesensor 105. The tilt information of the touch pen 201 may be an anglebetween the display 101 and the touch pen 201 and a tilt direction ofthe touch pen 201.

The touch pen 201 may output the information on the tilt angle and thetilt direction of the touch pen 201 in a form of a signal. In this case,the controller 103 may receive the signal output from the touch pen 201through the communicator 107 and determine the tilt information of thetouch pen 201 based on the signal output from the touch pen 201.

The controller 103 may determine a tilt direction of the touch pen 201based on the tilt information of the touch pen 201 and determine thedisplay direction of the graphical object based on the tilt direction ofthe touch pen 201. In addition, the controller 103 may control thedisplay 101 to change the display direction of the graphical object sothat the tilt direction of the touch pen 201 and the display directionof the graphical object become opposite to each other.

The controller 103 may control the display 101 to display the graphicalobject in a first layer and display a handwriting image displayed basedon the touch pen input in a second layer.

The controller 103 may control the display 101 to fix the second layerand change the display direction of the graphical object in the firstlayer based on the tilt direction of the touch pen 201.

The controller 103 may control the display 101 to change the displaydirection of the graphical object displayed in the first layer based onthe signal output from the sensor 105. In addition, the controller 103may determine the display direction of the graphical object displayed inthe first layer based on the signal output from the sensor 105. Thecontroller 103 may determine the tilt direction of the touch pen 201based on the signal output from the sensor 105 and control the display101 to change the display direction of the graphical object displayed inthe first layer according to the tilt direction of the touch pen 201.

FIGS. 2A and 2B are views provided to describe an embodiment of changinga display direction of a graphical object according to a tilt directionof the touch pen 201 according to an embodiment of the presentdisclosure.

Referring to FIGS. 2A and 2B, FIG. 2A illustrates the electronicapparatus 100, the display 101, and the touch pen 201. In response tothe touch pen 201 coming into contact with the display 101, thecontroller 103 may determine a contact point of the touch pen 201 and anangle (P) 203 between the touch pen 201 and the display 101. That is,the controller 103 may determine the tilt direction of the touch pen201.

FIG. 2B illustrates the tilt direction of the touch pen 201 and adisplay direction according to the tilt direction. In response to thetouch pen 201 coming into contact with the display 101, the controller103 may determine a direction to which the touch pen 201 tilts amongfour directions of upward, downward, right, and left directions 211,213, 215, 217, with reference to a center of the display 101.Subsequently, the controller 103 may determine display directions of thegraphical object 219, 221, 223, 225 based on the tilt direction of thetouch pen 201 and control the display 101 to rotate a screen. That is,the controller 103 may control the display 101 to change the displaydirection of the graphical object.

For example, in response to the touch pen 201 tilting in ‘a’ direction211, the controller 103 may determine the display direction of thegraphical object as a first direction 219 and control the display 101 torotate the screen based on the determined display direction. In responseto the touch pen 201 tilting in ‘b’ direction 213, the controller 103may determine the display direction of the graphical object as a seconddirection 221 and control the display 101 to rotate the screen based onthe determined display direction. In response to the touch pen 201tilting in ‘c’ direction 215, the controller 103 may determine thedisplay direction of the graphical object as a third direction 223 andcontrol the display 101 to rotate the screen based on the determineddisplay direction. In response to the touch pen 201 tilting in ‘d’direction 217, the controller 103 may determine the display direction ofthe graphical object as a fourth direction 225 and control the display101 to rotate the screen based on the determined display direction.

The controller 103 may differently determine the display direction basedon the tilt direction of the touch pen 201 according to whether a userhand holding the touch pen 201 is a left hand or a right hand. Forexample, in response to the touch pen 201 tilting in the ‘a’ direction211 as the user brings the touch pen 201 into contact with the display101 by a left hand, the controller 103 may determine the displaydirection of the graphical object as the fourth direction 225 andcontrol the display 101 to rotate the screen based on the determineddirection. In response to the touch pen 201 tilting in the ‘b’ direction213 as the user brings the touch pen 201 into contact with the display101 by the left hand, the controller 103 may determine the displaydirection of the graphical object as the first direction 219 and controlthe display 101 to rotate the screen based on the determined direction.In response to the touch pen 201 tilting in the ‘c’ direction 215 as theuser brings the touch pen 201 into contact with the display 101 by theleft hand, the controller 103 may determine the display direction of thegraphical object as the second direction 221 and control the display 101to rotate the screen based on the determined direction. In response tothe touch pen 201 tilting in the ‘d’ direction 217 as the user bringsthe touch pen 201 into contact with the display 101 by the left hand,the controller 103 may determine the display direction of the graphicalobject as the third direction 223 and control the display 101 to rotatethe screen based on the determined direction.

In response to the touch pen 201 tilting in the ‘a’ direction 211 as theuser brings the touch pen 201 into contact with the display 101 by aright hand, the controller 103 may determine the display direction ofthe graphical object as the first direction 219 and control the display101 to rotate the screen based on the determined direction. In responseto the touch pen 201 tilting in the ‘b’ direction 213 as the user bringsthe touch pen 201 into contact with the display 101 by the right hand,the controller 103 may determine the display direction of the graphicalobject as the second direction 221 and control the display 101 to rotatethe screen based on the determined direction. In response to the touchpen 201 tilting in the ‘c’ direction 215 as the user brings the touchpen 201 into contact with the display 101 by the right hand, thecontroller 103 may determine the display direction of the graphicalobject as the third direction 223 and control the display 101 to rotatethe screen based on the determined direction. In response to the touchpen 201 tilting in the ‘d’ direction 217 as the user brings the touchpen 201 into contact with the display 101 by the right hand, thecontroller 103 may determine the display direction of the graphicalobject as the fourth direction 225 and control the display 101 to rotatethe screen based on the determined direction.

The user is able to select whether to use the electronic apparatus 100in a right-hand mode or in a left-hand mode. In response to theright-hand mode being selected by the user, the controller 103 maydetermine that the user holds the touch pen 201 by the right hand anddetermine the display direction of the graphical object accordingly. Inresponse to the left-hand mode being selected by the user, thecontroller 103 may determine that the user holds the touch pen 201 bythe left hand, determine the display direction of the graphical objectaccordingly, and control the display 101 to rotate the screen based onthe determined direction.

In response to none of the right-hand mode and the left-hand mode beingselected by the user, the controller 103 may determine whether to usethe right-hand mode or user the left-hand mode based on the anglebetween the touch pen 201 and the display 101 and a traveling directionof the handwriting. For example, in response to the tilt direction ofthe touch pen 201 being the ‘b’ direction 213 and the travelingdirection of the handwriting being a right direction, the controller 103may determine to use the left-hand mode. In response to the tiltdirection of the touch pen 201 being the ‘a’ direction 211 and thetraveling direction of the handwriting being the right direction, thecontroller 103 may determine to use the right-hand mode.

In addition, the controller 103 may determine whether to use theright-hand mode or use the left-hand mode based the angle between thetouch pen 201 and the display 101 and the contact point of the userhand.

In response to the user using the electronic apparatus 100 by the handstanding it upright, the controller 103 may determine the displaydirection of the graphical object based on a signal output from agravity sensor (not shown). However, in response to the user using theelectronic apparatus 100 on a table laying it down on its side or usingthe electronic apparatus 100 by the hand laying it down on its side, itmay be difficult for the controller 103 to determine the displaydirection of the graphical object based on the signal output from thegravity sensor. Accordingly, in this case, the controller 103 maydetermine the display direction of the graphical object based on thetilt direction of the touch pen 201.

FIGS. 3A and 3B are views illustrating a handwriting input layer and agraphical object display layer according to an embodiment of the presentdisclosure.

Referring to FIGS. 3A and 3B, FIG. 3A illustrates a graphical objectdisplay layer 301, a handwriting input layer 303, and the touch pen 201.In the graphical object display layer 301, a graphic character and imagemay be displayed. For example, an icon and button for executing acharacter, a content, and an application may be displayed in thegraphical object display layer 301. In the handwriting input layer 303,a handwriting image based on the input of the touch pen 201 may bedisplayed. The handwriting image may be generated in response to theuser moving the touch pen 201 while maintaining the touch of the touchpen 201 with respect to the display 101. The generated handwriting imagemay be converted into text.

The handwriting input layer 303 may be provided in a transparent form orin a translucent form, for example. The electronic apparatus 100 mayreceive the handwriting image using the touch pen 201 through theprovided handwriting input layer 303. The received handwriting image maybe displayed in the handwriting input layer 303. The handwriting imageis displayed in the handwriting input layer 303 different from thegraphical object display layer 301, and thus, the received handwritingimage may be processed separately from the graphical object. That is,the controller 103 may recognize and process the handwriting imagedisplayed in the graphical object display layer 301 as a distinctobject. For example, the controller 103 may erase only the handwritingimage separately.

FIG. 3B illustrates the electronic apparatus 100, graphical objects 101a, 101 b, the graphical object display layer 301, the handwriting inputlayer 303, a handwriting image 305, and the touch pen 201. The graphicalobject 101 b is the graphical object 101 a which rotated 90 degrees.

The electronic apparatus 100 may display the graphical object 101 a inthe display 101, sense the input of the touch pen 201, and change thedisplay direction of the graphical object displayed in the display 101based on the input of the touch pen 201. The lower drawing of FIG. 3Billustrates the changed display direction of the graphical object.

In order to change the display direction of the graphical object, theelectronic apparatus 100 may determine the tilt information of the touchpen 201 based on a signal corresponding to the input of the touch pen201. The signal corresponding to the input of the touch pen 201 may be asignal output from the sensor 105 in response to the touch pen 201coming into contact with the display 101. In addition, the signalcorresponding to the input of the touch pen 201 may be a signalgenerated in the touch pen 201 and may be received through thecommunicator 107. The electronic apparatus 100 may analyze the signalcorresponding to the input of the touch pen 201 and determine the tiltinformation of the touch pen 201.

The electronic apparatus 100 may determine the tilt direction of thetouch pen 201 based on the tilt information of the touch pen 201 anddetermine the display direction of the graphical object based on thetilt direction of the touch pen 201.

The electronic apparatus 100 may change the display direction of thegraphical object so than the tilt direction of the touch pen 201 and thedisplay direction of the graphical object become opposite to each other.

The electronic apparatus 100 may display the handwriting image in thedisplay 101 based on the input of the touch pen 201. In this case, theelectronic apparatus 100 may display the graphical object and thehandwriting image in different layers, respectively. The electronicapparatus 100 may display the graphical object in the first layer anddisplay the handwriting image displayed based on the input of the touchpen 201 in the second layer. The first layer may be the graphical objectdisplay layer 301. The second layer may be the handwriting input layer303.

The electronic apparatus 100 may fix the second layer and change thedisplay direction of the graphical object in the first layer based onthe tilt direction of the touch pen 201.

In addition, the electronic apparatus 100 may display the graphicalobject in the first layer, sense the input of the touch pen 201, displaythe handwriting image in the second layer based on the input of thetouch pen 201, and change the display direction of the graphical objectbased on the input of the touch pen 201.

The electronic apparatus 100 may determine the tilt direction of thetouch pen 201 based on the input of the touch pen 201 and change thedisplay direction of the graphical object displayed in the first layerbased on the tilt direction of the touch pen 201. In addition, theelectronic apparatus 100 may maintain a direction of the second layerwithout change although the display direction of the graphical object ischanged.

The upper drawing of FIG. 3B illustrates an example where the displaydirection of the graphical object and a display direction of thehandwriting are misaligned 90 degrees with respect to each other.

The lower drawing of FIG. 3B illustrates an example where the displaydirection of the graphical object rotates 90 degrees so that thegraphical object corresponds to the display direction of handwritingimage according to the tilt direction of the touch pen 201.

That is, the upper drawing of FIG. 3B illustrates an example where thetouch pen 201 comes into contact with the display 101 while thegraphical object 101 a is displayed in the display 101 with reference to‘A’ direction 302. The graphical object 101 a may be displayed in thegraphical object display layer 301. In this case, the travelingdirection of the handwriting input may be based on ‘B’ direction 304.The handwriting image 305 may be displayed in the handwriting inputlayer 303 with reference to the ‘B’ direction 304. In this case, thehandwriting image 305 and the graphical object 101 a may be misaligned90 degrees with respect to each other. That is, the display direction ofthe graphical object display layer 301 and the handwriting direction ofthe handwriting input layer 303 are not consistent and misaligned 90degrees with respect to each other.

In response to the user performing the handwriting by using the touchpen 201 while the graphical object 101 a is displayed in the display101, the handwriting image 305 may be displayed in the handwriting inputlayer 303. In this case, the display direction of the graphical object101 a is the ‘A’ direction 302. The handwriting input direction in thehandwriting input layer 303 is the ‘B’ direction 304. The controller 103may change the display direction of the graphical object 101 a based onthe handwriting input ‘B’ direction 304.

That is, the controller 103 may determine an upper direction of theelectronic apparatus 100 based on the tilt direction of the touch pen201 and the traveling direction of the handwriting image and control thedisplay 101 to rotate the graphical object displayed in the graphicalobject display layer 301 a counterclockwise 90 degrees with respect tothe electronic apparatus 100. In this case, the controller 103 may fixthe handwriting image 305 displayed in the handwriting input layer 303without rotation. Alternatively, the controller 103 may fix thehandwriting input layer 303.

A graphical object display layer 301 b illustrated in the lower drawingof FIG. 3B represents a state where the graphical object display layer301 a illustrated in the upper drawing of FIG. 3B rotatescounterclockwise 90 degrees. In the lower drawing of FIG. 3B, thegraphical object 101 b displayed in the display 101 represents a statewhere the graphical object display layer 101 a rotates counterclockwise90 degrees. In response to the graphical object 101 a rotating and beingdisplayed, the controller 103 may control the display 101 to place thehandwriting input at the center of the display 101. In addition, inresponse to the graphical object 101 a rotating and being displayed, thecontroller 103 may control the display 101 to arrange the upper part tobe consistent. Accordingly, a width of the graphical object 101 a may beextended and displayed.

FIGS. 4A and 4B are views provided to describe an embodiment ofinputting handwriting into a content having an input field by using thetouch pen 201 according to an embodiment of the present disclosure.

Referring to FIGS. 4A and 4B, FIG. 4A illustrates a content 401 havingan input field 403 in the display 101. In response to the user touchingthe input filed 403 by using the touch pen 201 or accessing the touchpen 201 to the input field 403, the controller 103 may control thedisplay 101 to magnify and display the input filed 403. The content 401may a graphical object having the input field 403. In response to acontact or access (hovering) of the touch pen 201 being sensed from theinput field 403 while the content 401 having the input field 403 isdisplayed in the display 101, the controller 103 may provide ahandwriting input layer 403 a corresponding to the input field 403, asillustrated in FIG. 4B.

FIG. 4B illustrates the content 410 having the input field 403, thehandwriting input layer 403 a corresponding to the input field 403, anda handwriting image 403 b. The size of the handwriting input layer 403 acorresponding to the input field 403 may be equal to or larger than thesize of the input field 403. The controller 103 may control the display101 to display the handwriting input layer 403 a in the input field 403in an overlapping manner. The handwriting input layer 403 acorresponding to the input field 403 may be displayed in the display 101translucently. The transparency of the handwriting input layer 403 acorresponding to the input field 403 may be predetermined or set by theuser. The handwriting input layer 403 a corresponding to the input field403 may be partially located at a position of the input field 403 of thegraphical object display layer.

In response to a touch sensing signal being received in the input field403 while the content having the input field 403 is displayed, thecontroller 103 may control the display 101 to magnify and display thehandwriting input layer 403 a corresponding to the input field 403. Inthis case, the touch sensing signal may be output from the sensor 105 inresponse to the touch pen 201 coming into contact with the display 101.In addition, the touch sensing signal may be output from the sensor 105in response to the user finger coming into contact with the display 101.

The controller 103 may sense the contact or access of the touch pen 201with respect to the input field 403 while the content having the inputfield 403 is displayed in the graphical object display layer and controlthe display 101 to display the handwriting input layer 403 a at aposition corresponding to the input field 403 in an overlapping mannerbased on the sensed contact or access of the touch pen 201. Thecontroller 103 may adjust the transparency of the handwriting inputlayer 403 a to a predetermined value. In addition, the controller 103may adjust the size of the handwriting input layer 403 a to be equal toor larger than the size of the input field 403.

In response the user inputting the handwriting into the input field 403through the handwriting input layer 403 a, the controller 103 maycontrol the display 101 to display the input handwriting image 403 b inthe handwriting input layer 403 a. The handwriting image 403 b may beconverted into text in a character recognition module (not shown) anddisplayed in the input field 403.

FIGS. 5A and 5B are views provided to describe an embodiment of draggingan edge area of the display 101 where a content is displayed to displaya memo window according to an embodiment of the present disclosure.

Referring to FIGS. 5A and 5B, FIG. 5A illustrates a content 501 and anedge area 503. The edge area 503 may be an upper end, a lower end, aleft end, and a right end of the display 101. In response to the userdragging the edge area 503 of the display 101 where the content 501 isdisplayed, the controller 103 may control the display 101 to display amemo window 505 for inputting the handwriting into the display 101.

FIG. 5B illustrates an example where the display 101 displays thecontent 501 and the memo window 505. In response to a drag operation ofthe touch pen 201 being sensed from the edge area 503 of the display101, the controller 103 may control the display 101 to display the memowindow 505. The user may input the handwriting into the electronicapparatus 100 through the memo window 505. The handwriting image inputthrough the memo window 505 may be converted into the text or stored inthe electronic apparatus 100 in a form of image. In this case,information on the content 501 may be stored together with thehandwriting image. The content 501 may be displayed in the graphicalobject layer. The memo window 505 may be displayed in the handwritinginput layer. The handwriting input layer may be smaller than thegraphical object display layer. In response to a user input being sensedfrom the edge area 503 of the display 101 while the graphical objectlayer is displayed in the display 101, the controller 103 may controlthe display 101 to display the handwriting input layer at the positionfrom which the user input was sensed. To be specific, in response to asignal based on a pen-drag gesture being input in the edge area 503 ofthe display 101 while the graphical object is displayed in the display101, the controller 103 may control the display 101 to display a memowindow for inputting a handwriting input in the edge area 503. Thepen-drag gesture may be an operation of bringing the touch pen 201 intocontact with the display 101 and moving the touch pen 201 whilemaintaining the contact. The sensor 105 may output the signal based onthe pen-drag gesture.

FIGS. 6A and 6B are views provided to describe an embodiment ofidentifying a user through recognition on a hand wring image andautomatically setting a pen style according to an embodiment of thepresent disclosure.

Referring to FIG. 6A, the display 101 displays a content 601 andhandwriting images 603, 605, 607, 609. The controller 103 may identify auser by analyzing writing of the handwriting input through thehandwriting input layer and set a pen style automatically based on theanalysis on the writing. At least one of the handwriting images 603,605, 607, 609 may be input by different users. For example, thehandwriting images 603, 607, 609 may be input by User A, and thehandwriting image 605 may be input by User B.

The controller 103 may control the display 101 to display thehandwriting images 603, 607, 609 in red. That is, controller 103 maycontrol the display 101 to display in red the handwriting images 603,607, 609 input by User A. The controller 103 may control the display 101to display the handwriting imago 605 in yellow. That is, controller 103may control the display 101 to display in yellow the handwriting imago605 input by User B.

Referring to FIG. 6B, the display 101 displays handwriting images 603 a,605 a, 607 a, 609 a displayed in different colors. A red-colored penstyle may be applied to the handwriting images 603 a, 607 a, 609 a. Inaddition, a yellow-colored pen style may be applied to the handwritingimage 605 a.

In addition, a pen style may be applied to the handwriting images 603 a,609 a. A brush style may be applied to the handwriting image 605 a. Apencil style may be applied to the handwriting image 607 a.

In response to the user being identified by the analysis on the writing,the controller 103 may give the identified user a predetermined documentedition authority. For example, in response to a certain user beingidentified as a student by the analysis on the handwriting image, thecontroller 103 may limit the edition of a document with respect to theuser. In response to the user being identified as a teacher by theanalysis on the handwriting image, the controller 103 may allow theedition of a document with respect to the user.

That is, the controller 103 may lock or unlock the graphical objectdisplay layer based on the handwriting image input into the handwritinginput layer. Alternatively, the controller 103 may control the graphicalobject display layer based on the handwriting image input into thehandwriting input layer.

FIGS. 7A to 7C are views provided to describe an example of aninteraction of the touch pen 201 while a document image is displayed inthe display 101 according to an embodiment of the present disclosure.

Referring to FIGS. 7A to 7C, FIG. 7A illustrates a document image 701, atextualized document 703, a part of document 705, and a partial documentimage 707. The controller 103 may convert the document image 701 intothe textualized document 703. In response to the user accessing thetouch pen 201 to the part of document 705 or touching the part ofdocument 705 by using the touch pen 201 while the textualized document703 is displayed in the display 101, the controller 103 may control thedisplay 101 to display the partial document image 707 corresponding tothe part of document 705. In this case, the partial document image 707may be displayed around the position from which the touch was sensed.

FIG. 7B illustrates the document image 701, a textualized document 715,a part of document image 711, an underline 713, and the touch pen 201.In response to the user performing a drag operation while pressing abutton 201 a of the touch pen 201 in order to convert a part of thedocument image 701 into text while the document image 701 is displayedin the display 101, the controller 103 may control the display 101 todisplay the underline 713 on the part of the document image 701 in anarea from which the drag operation was sensed and may convert the partof the document image 701 into text. In response to the contact orhovering of the touch pen 201 being sensed while the document image 701is displayed in the display 101, the controller 103 may determine theposition from the contact or hovering was sensed. In response to thetouch pen 201 being moved while maintaining the contact, the controller103 may control the display 101 to display the underline 713 on a movingtrajectory and may convert the document image around the underline 713into text. The controller 103 may display the converted text document715 in the display 101. In this case, only the part of document image711 included in the document image 701 may be converted into text.

FIG. 7C illustrates the document image 701, a textualized document 721,an underline 723, and a partial document image 725. The controller 103may convert the document image 701 into the textualized document 721. Inresponse to the user accessing the touch pen 201 to a part of text(hovering) while the textualized document 721 is displayed in thedisplay 101, the controller 103 may control the display 101 to displaythe partial document image 725 corresponding to the part of text. Inthis case, the partial document image 725 may be displayed around theposition from which the hovering of the touch pen 201 was sensed. Inaddition, in response to the user touching the part of text by using thetouch pen 201 while the textualized document 721 is displayed, thecontroller 103 may control the display 101 to display the partialdocument image 725 corresponding to the part of text. In this case, thepartial document image 725 may be displayed around the position fromwhich the contact of the touch pen 201 was sensed.

FIG. 8 is a view provided to describe an example of a hoveringinteraction of the touch pen 201 according to an embodiment of thepresent disclosure.

Referring to FIG. 8, the display 101 displays a document 801, anapplication 803, and the touch pen 201. In response to the useraccessing the touch pen 201 to the display 101 at an arbitrary positionof a document displayed in the display 101, the controller 103 may sensethe hovering from the arbitrary position of the document. The controller103 may extract a character and number displayed at the position fromwhich the hovering was sensed and call an application corresponding tothe extracted character and number. In response to the application beingcalled, the controller 103 may connect the extracted character andnumber to the application 803. That is, the controller 103 may use theextracted character and number as an input of the application. Inaddition, controller 103 may control the display 101 to display anexecution result of the application obtained by inputting the extractedcharacter and number into the application.

The application 803 may be a widget. The widget refers to a miniapplication which is one of the GUIs for facilitating an interactionbetween a user and an application or between the user and an operatingsystem (OS). For example, the widget may include a dictionary widget, aweather widget, a calculator widget, a clock widget, a phone widget,etc.

In response to the user accessing the touch pen 201 to a certain word801 a while reading the document 801 displayed in the display 101, thecontroller 103 may control the display 101 to display a dictionarywidget of the application 803. In addition, the controller 103 may inputthe selected word 801 a into a search box of the dictionary widget ofthe application 803 and may control the display 101 to display thesearch result in the dictionary widget of the application 803. Forexample, in response to the user accessing the touch pen 201 to a word‘round,’ the controller 103 may input the word ‘round’ into thedictionary widget of the application 803 and may control the display 101to search a meaning of the word ‘round’ and display the search result inthe dictionary widget of the application 803.

In addition, in response to the user accessing the touch pen 201 to acertain number while reading the document 801 displayed in the display101, the controller 103 may execute an application or widget where thenumber may be used as an input.

For example, in response to the user accessing the touch pen 201 tonumbers ‘01032634119,’ the controller 103 may control the display 101 todisplay a phone widget and may make a phone call. According to anotherembodiment, in response to the user accessing the touch pen 201 to acertain number while reading the document 801 displayed in the display101, the controller 103 may control the display 101 to display acalculator widget in the display 101.

FIGS. 9A and 9B are views provided to describe a method for applying aformat by using the touch pen 201 according to an embodiment of thepresent disclosure.

Referring to FIG. 9A, the display 101 displays a document 901, a firstarea 903, a second area 905, and the touch pen 201. A format may beapplied to the document 901 displayed in the display 101. The first area903 and the second area 905 may be a part of areas selected from thedocument.

The touch pen 201 may operate in a first mode or in a second mode. Thetouch pen 201 includes a button. In response to the user brining thetouch pen 201 into contact with the display 101 without pressing thebutton, the touch pen 201 may operate in the first mode. In response tothe user brining the touch pen 201 into contact with the display 101while pressing the button, the touch pen 201 may operate in the secondmode. In response to the touch pen 201 operating in the first mode, thecontroller 103 may receive a first signal from the touch pen 201.Alternatively, in response to the touch pen 201 operating in the firstmode, the controller 103 may receive the first signal from the sensor105.

In response to the touch pen 201 operating in the second mode, thecontroller 103 may receive a second signal from the touch pen 201.Alternatively, in response to the touch pen 201 operating in the secondmode, the controller 103 may receive the second signal from the sensor105.

In response to the user brining the touch pen 201 into contact with thefirst area 903 while pressing the button of the touch pen 201 and movingthe touch pen 201 while the document 901 is displayed in the display101, the controller 103 may select the first area 903 and copy a formatapplied to the first area 903. In this case, in response to the userbrining the touch pen 201 into contact with the second area 905, thecontroller 103 may apply the format of the first area 903 to the secondarea 905.

In response to the second signal being received from the touch pen 201and a user input being received from the first area 903 of the display101 while the document 901 is displayed in the display 101, thecontroller 103 may acquire the format of the first area 903. In responseto the user input being received from the second area 905 of the display101 after the format of the first area 903 is acquired, the controller103 may apply the format of the first area 903 to the second area 905.

For example, in response to the user performing a drag operation in thefirst area 903 while pressing the button of the touch pen 201 while thedocument 901 is displayed in the display 101, the controller 103 mayselect the first area 903. The selected first area 903 may be reversedor highlighted. In addition, the format of the selected first area 903may be extracted. In response to the user performing the drag operationin the second area 905 while pressing the button of the touch pen 201,the controller 103 may apply the format of the first area 903 to thesecond format 905. That is, in response to a base color of the firstarea 903 being yellow, the controller 103 may control the display 101 todisplay a base color of the second area 905 in yellow. In response to afont of the first area 903 being a Gothic font, the controller 103 maycontrol the display 101 to display a font of the second area 905 in theGothic font. In response to the font of the first area 903 being anItalic font, the controller 103 may control the display 101 to displaythe font of the second area 905 in the Italic font.

FIG. 9B illustrates the document 901, a first area 913, a second area917, a format list 915, and the touch pen 201. In response to the userbrining the touch pen 201 into contact with the first area 913 while thedocument 901 is displayed in the display 101, the controller 103 mayselect the first area 913 and control the display 101 to highlight theselected area. The format list 915 applied to the first area 913 may bedisplayed around the first area 913 which come into contact with thetouch pen 201. In response to the user brining the touch pen 201 intocontact with the first area 913 and pressing the button of the touch pen201, the controller 103 may control the display 101 to display theformat list 915 applied to the first area 913 around the first area 913which come into contact with the touch pen 201.

In response to the user selecting one of a plurality of formats includedin the format list 915 by using the touch pen 201, moving the touch pen201 to other position, and brining the touch pen 201 into contact withthe second area 917 of the document 901, the controller 103 may applythe format applied to the second area 917. That is, the format of thefirst area 913 may be applied to the second area 917.

In response to the contact and movement of the touch pen 201 beingsensed while the document is displayed in the display 101, thecontroller 103 may determine the first area 913 based on a movingdistance of the touch pen 201. That is, in response to the dragoperation by the touch pen 201 being received in the first area 913 ofthe document, the controller 103 may acquire the format applied to thefirst area 913 and control the display 101 to display the format list915 applied to the first area 913 around the first area 913.

In response to a user input of selecting a format from among theplurality of formats in the format list 915 being received and the dragoperation by the touch pen 201 being received from the second area 917,the controller 103 may control the display 101 to apply the selectedformat to the second area 917 and display the second area 917.

For example, in response to the user performing the drag operation inthe first area 913 while the document 901 is displayed in the display101, the format list 915 applied to the first area 913 may be displayedaround the first area 913. In response to the user touching a formatamong the plurality of formats in the format list 915 by using the touchpen 201, the controller 103 may select the touched format. In thisstate, in response to the user performing the drag operation in thesecond area 917 by using the touch pen 201, the controller 103 may applythe selected format to the second area 917. In response to the selectedformat having a bold style, the second area 917 may be displayed inbold.

FIGS. 10A and 10B are views provided to describe a method for applying aformat according to an embodiment of the present disclosure.

Referring to FIGS. 10A and 10B, FIG. 10A illustrates a document 1001, aformat list 1003, a format 1003 a, a selection area 1005, a formatapplication area 1007, the touch pen 201, and the button 201 a.

In response to the user pressing the button 201 a of the touch pen 201,selecting a format 1003 a from the format list 1003, and selecting aselection area 1005 to which the user wishes to apply the format whilethe document 1001 and the format list 1003 are displayed in the display101, the controller 103 may apply the selected format 1003 a. Thedisplay 101 may display the format application area 1007 to which theformat was applied. In response to the user releasing button pressing ofthe touch pen 201, the controller 103 may remove the applied format 1003a. That is, the selected format 1003 a may be applied only when thebutton 201 a of the touch pen 201 is pressed.

In addition, in response to the user selecting the format 1003 a fromthe format list 1003 and selecting the selection area 1005 to which theuser wishes to apply the format while the document 1001 and the formatlist 1003 are displayed in the display 101, the controller 103 may applythe selected format 1003 a. The display 101 may display the formatapplication area 1007 to which the format was applied. The appliedformat 1003 a may be applied continuously unless any release command isreceived. The selected format 1003 a may be also applied when the userinputs the handwriting by using the touch pen 201.

FIG. 10B illustrates a document 1011, a format list 1013, a format 1013a, the selection area 1005, the format application area 1007, the touchpen 201, and the button 201 a.

In response to the user touching the format 1013 a in the format list1013 by using the finger and selecting the selection area 1005 to whichthe user wishes to apply the format by using the touch pen 201 withmaintaining the touch with respect to the format 1013 a while thedocument 1011 and the format list 1013 are displayed in the display 101,the controller 103 may apply the selected format 1013 a. The display 101may display the format application area 1007 to which the format wasapplied. In response to the user releasing the finger touch, thecontroller 103 may remove the selected format 1003 a. That is, theselected format may be applied in response to the user touching theformat list 1013 by using the finger and maintaining the touch.

In response to a touch being sensed from the first area 1013 of thedisplay 101 and another touch being sensed from the second area 1005while the touch in the first area 1013 is maintained, the controller 103may apply the format selected in the first area 1013 to the second area1005. The first area 1013 may be a format list, and the second area 1005may be a part of the document.

FIG. 11 is a view provided to describe a method of setting a user formataccording to an embodiment of the present disclosure. FIG. 11illustrates a document 1101, a user-designated format list 1103, auser-selected format 1103 a, the touch pen 201, and a button 102 a.

Referring to FIG. 11, the user may store and manage a certain format ofthe touch pen 201 to be used for a particular purpose. That is, the usermay store a user-designated format in the user-designated format list1103 and call the format according to the need.

In response to the user calling the user-designated format list 1103while the document 1101 is displayed in the display 101, the controller103 may control the display 101 to display the user-designated formatlist 1103 in the upper part of the screen. The user-designated formatlist 1103 may include a format that the user uses frequently. Inresponse to the user selecting the user-selected format 1103 a from theuser-designated format list 1103 and performing the handwriting by usingthe touch pen 201, the controller 103 may apply the user-selected format1103 a. Alternatively, in response to the user selecting a particulararea from the document 1101, the controller may apply the user-selectedformat 1103 a.

FIGS. 12A to 12C are views provided to describe an embodiment ofmagnifying a format menu of the touch pen 201 according to amagnification of a screen according to an embodiment of the presentdisclosure.

Referring to FIGS. 12A to 12C, FIG. 12A illustrates a document 1201, ahandwriting image 1203, a format list 1205, and the touch pen 201. Thedisplay 101 displays the document 1201 in an original magnification. Thecontroller 103 may determine a display magnification of the format list1205 based on the magnification of the document 1201 displayed in thedisplay 101. In response to the document 1201 being displayed in anoriginal size in the display 101, the controller 103 may control thedisplay 101 to display the format list 1205 in an original size. In thiscase, the handwriting image 1203 may be also displayed in an originalsize.

FIG. 12B illustrates a document 1211, a handwriting image 1213, a formatlist 1215, and the touch pen 201. The display 101 may magnify anddisplay the document 1211 by 200% of the original magnification. Thecontroller 103 may determine the display magnification of the formatlist 1215 based on the magnification of the document 1211 displayed inthe display 101. In response to the document 1211 being displayed in200% of the original magnification in the display 101, the controller103 may control the display 101 to magnify and display the format list1215 by 200% of the original magnification. The handwriting image 1203may be also magnified and displayed by 200% of the originalmagnification.

FIG. 12C illustrates a document 1221, a handwriting image 1223, a formatlist 1225, and the touch pen 201. The display 101 may reduce and displaythe document 1221 by 50% of the original magnification. The controller103 may determine the display magnification of the format list 1225based on the magnification of the document 1221 displayed in the display101. In response to the document 1221 being displayed in 50% of theoriginal magnification in the display 101, the controller 103 maycontrol the display 101 to reduce and display the format list 1225 by50% of the original magnification. The handwriting image 1223 may bealso reduced and displayed by 50% of the original magnification.

That is, in response to a user input of displaying a format of the touchpen 201 being received while a content is displayed in the display 101,the controller 103 may determine the magnification of the contentdisplayed in the display 101 and control the display 101 to display theformat of the touch pen 201 based on the determined magnification.

FIGS. 13A to 13C are views provided to describe a method for convertinga handwriting input mode and a gesture input mode by using the touch pen201 according to an embodiment of the present disclosure.

Referring to FIGS. 13A to 13C, in the handwriting input mode, the inputof the touch pen 201 may be recognized as the handwriting image. In thegesture input mode, the input of the touch pen 201 may be recognized asa command to execute a particular function. For example, in thehandwriting input mode, in response to the user inputting thehandwriting into the display 101 by using the touch pen 201, thecontroller 103 may recognize the input handwriting as the handwritingimage and convert the input handwriting into corresponding text. In thegesture input mode, in response to the user drawing a triangle in thedisplay 101 by using the touch pen 201, the controller 103 may play backmusic. In response to the user drawing a square in the display 101 byusing the touch pen 201 while the music is played back, the controller103 may stop the playback.

FIG. 13A illustrates a first area 1301 and a second area 1303 of thedisplay 101. In response to a signal based on the contact of the touchpen 201 being received in the display 101, the controller 103 may dividethe display 101 into the first area 1301 and the second area 1303 basedon a direction of the electronic apparatus 100. That is, in response totouch information by the touch pen 201 being received in the display101, the controller 103 may divide the display 101 into the first area1301 and the second area 1303 based on the direction of the electronicapparatus 100.

The controller 103 may determine the first area 1301 and the second area1303 based on the direction of the electronic apparatus 100. Thecontroller 103 may determine an upper area of the display 101 as thesecond area 1303. In the first area 1301, the controller 103 may receivethe signal based on the contact of the touch pen 201 and may do notreceive or may ignore a signal based on a touch of a finger. In thesecond area 1303, the controller 103 may receive the signal based on thetouch of the finger.

FIG. 13B illustrates the first area 1301, the second area 1303, and thetouch pen 201. In response to a signal based on a user input not beingreceived in the second area 1303, the controller 103 may set the firstarea 1301 as a first mode. The first mode may be the handwriting inputmode. In response to the signal based on the input of the touch pen 201being received in the first area 1301, the controller 103 may controlthe display 101 to display the handwriting image based on the receivedsignal.

In response to the signal based on the user input being received in thesecond area 1303, the controller 103 may set the first area 1301 as asecond mode. The second mode may be the gesture input mode. In responseto the signal based on the input of the touch pen 201 being received inthe second area 1303, the controller 103 may determine a gesture basedon the received signal and control to execute a command or functioncorresponding to the determined gesture.

FIG. 13C illustrates the first area 1301, a second area 1305, and thetouch pen 201. The controller 103 may determine the first area 1301 andthe second area 1305 by considering the direction of the electronicapparatus 100. A position of the second area 1305 may vary according towhether the direction of the electronic apparatus 100 is a horizontaldirection or a vertical direction. In response to the signal based onthe input of the touch pen 201 being received in the display 101, thecontroller 103 may determine the first area 1301 and the second area1305 based on the direction of the electronic apparatus 100. Thecontroller 103 may inactivate a touch input of a finger in the firstarea 1301 and activate the touch input of the finger in the second area1305.

FIG. 14 is a flowchart provided to describe a method for changing adisplay direction of a graphical object displayed in the display 101based on an input of the touch pen 201 according to an embodiment of thepresent disclosure.

Referring to FIG. 14, the electronic apparatus 100 displays a graphicalobject in the display 101 at operation 51401. In this case, thegraphical object may be displayed in a graphical object display layer.The graphical object display layer may display a character, an icon andbutton for executing a content application, etc.

The electronic apparatus 100 may sense an input of the touch pen 201 inthe display 101 at operation 51403. The display 101 may display thegraphical object display layer and a handwriting input layer. Theelectronic apparatus 100 may display a handwriting image in thehandwriting input layer based on the input of the touch pen 201. Inresponse to the user inputting the handwriting into the display 101 byusing the touch pen 201 while the graphical object is displayed in thedisplay 101, the electronic apparatus 100 may display the handwritingimage in the handwriting input layer.

The electronic apparatus 100 may change the display direction of thegraphical object displayed in the display 101 based on the input of thetouch pen 201 at operation S 1405. In response to the user inputting thehandwriting into the display 101 by using the touch pen 201, theelectronic apparatus 100 may receive a signal based on the contact ofthe touch pen 201 from the sensor 105. The electronic apparatus 100 maydetermine an angle between the touch pen 201 and the display 101 and adirection by processing the received signal. That is, the electronicapparatus 100 may determine a tilt angle and direction of the touch pen201. The tilt angle and direction of the touch pen 201 may be tiltinformation of the touch pen 201. The electronic apparatus 100 maydetermine a direction of a handwriting input of the touch pen 201 byusing the tilt information of the touch pen 201 and determine thedisplay direction of the graphical object based on the direction of thehandwriting input.

The touch pen 201 may output status information, such as, the tiltinformation of the touch pen 201, autonomously. The electronic apparatus100 may receive a signal output from the touch pen 201 and determine thetilt information of the touch pen 201 based on the received signal.

The electronic apparatus 100 may determine a tilt direction of the touchpen 201 based on the tilt information of the touch pen 201 and determinethe display direction of the graphical object based on the tiltdirection of the touch pen 201.

The electronic apparatus 100 may rotate the display direction of thegraphical object so that the tilt direction of the touch pen 201 and thedisplay direction of the graphical object become opposite to each other.

The electronic apparatus 100 may display the handwriting image in thesecond layer based on the input of the touch pen 201. In addition, theelectronic apparatus 100 may display the graphical object in the firstlayer and display the handwriting image displayed based on the input ofthe touch pen 201 in the second layer.

The electronic apparatus 100 may fix the second layer and rotate or fixa display direction of the first layer based on the tilt direction ofthe touch pen 201.

The screen displayed in the display 101 may include the first layer andthe second layer. The first layer may be the graphical object displaylayer, and the second layer may be a touch pen input layer. Theelectronic apparatus 100 may display the graphical object in the firstlayer and receive a signal based on the input of the touch pen 201through the second layer. The electronic apparatus 100 may display thehandwriting image in the second layer based on the input of the touchpen 201. In addition, the electronic apparatus 100 may change thedisplay direction of the graphical object displayed in the first layerbased on the input of the touch pen 201.

The electronic apparatus 100 may determine the tilt direction of thetouch pen 201 based on the input of the touch pen 201 and may change thedisplay direction of the graphical object displayed in the first layerbased on the tilt direction of the touch pen 201.

The electronic apparatus 100 may fix a direction of the second layeralthough the display direction of the graphical object is changed.

According to the various embodiments, an apparatus may include aprocessor, a memory for storing and executing program data, a permanentstorage, for example, a disk drive, a communication port forcommunicating with an external apparatus, and a user interfaceapparatus, for example, a touch panel, a key, a button, etc. The methodsrealized as a software module or an algorithm may be stored in acomputer readable recording medium in a form of computer readable codesor program commands which are executable in the processor. In this case,the computer readable recording medium may include a magnetic storagemedium (for example, read only memory (ROM), random access memory (RAM),floppy disk, hard disk, etc.) and an optical reader (for example,compact disc ROM (CD-ROM), digital versatile disc (DVD), etc.) Thecomputer readable recording medium may store and execute a code which isdistributed to computer systems interconnected through a network and isreadable by a computer in a distribution method. The medium may be readby the computer, stored in a memory, and executed in the processor.

The present embodiments may be expressed by functional blocks andvarious processing operations. The functional blocks may be realized asvarious numbers of hardware and/or software elements for performingparticular functions. For example, the various embodiments may employintegrated circuits, such as, memory, processing, logic, look-up table,etc. The integrated circuits may perform diverse functions according tocontrol of one or more microprocessors or other control devices. As theelements may be executed as software programming or software elements,the present embodiments may include diverse algorithms realized througha combination of a data structure, processes, routines, or otherprogramming elements and may be realized as a programming language orscripting language, such as, C, C++, Java, assembler, etc. Thefunctional aspects may be realized as an algorithm executed in one ormore processors. In addition, the present embodiments may employ therelated art for electronic configuration, signal processing, and/or dataprocessing. The terms ‘mechanism,’ ‘element,’ ‘means,’ and ‘component’may be interpreted broadly and are not limited to a mechanical andphysical component. The terms may include the meaning of a series ofprocessing operations of software (routines) in connection with aprocessor and the like.

The particular performances described in the present embodiments areonly the examples and do not limit the technical scope of the presentdisclosure in any aspects. For conciseness of the specification, thedescriptions on the electronic components, control systems, software,and other functional aspects of the systems in the related art may beomitted. In addition, connections of lines between the elements shown inthe accompanying drawings or connecting members thereof are provided toexemplify a functional connection and/or a physical or circuitconnection. In an actual apparatus, the connections or the connectingmembers may be represented by a variety of replaceable or additionalfunctional connections, physical connections, or circuit connections.

In the present disclosure (in particular, in the claims), the term ‘the’or ‘said’ and other similar referring terms may pertain to both of asingular form and a plural form. A range in the descriptions includesindividual values which belong to the range (unless otherwise defined),and thus, it will be understood that the detailed description disclosesrespective individual values in the range. The operations of the methodsmay be performed in a proper order unless the order is specifiedobviously or any contrary description exits, which is not limited to theorder of the operations. Examples or exemplificative terms (for example,‘etc.’) in the present disclosure are provided to describe the technicalconcept specifically, and thus, the technical scope of the presentdisclosure is not limited by the examples or exemplificative termsunless the technical scope is limited by the claims. In addition, itwill be understood by those skilled in the art that the presentdisclosure may conform to design conditions and factors within the rangeof the claims to which various modifications, combinations, and changesare applied and the equivalents thereof.

While the present disclosure has been shown and described with referenceto various embodiments thereof, it will be understood by those skilledin the art that various changes in form and details may be made thereinwithout departing from the spirit and scope of the present disclosure asdefined by the appended claims and their equivalents.

What is claimed is:
 1. An electronic apparatus comprising: acommunicator configured to receive a signal from an external source; adisplay configured to display a graphical object; a sensor configured tosense an input of a touch pen and output a signal corresponding to theinput of the touch pen; and a controller configured to determine adisplay direction of the graphical object displayed in the display basedon the signal output from the sensor.
 2. The electronic apparatus asclaimed in claim 1, wherein the controller determines tilt informationof the touch pen based on the signal.
 3. The electronic apparatus asclaimed in claim 1, wherein the controller receives a signal output fromthe touch pen through the communicator and determines tilt informationof the touch pen based on the signal output from the touch pen.
 4. Theelectronic apparatus as claimed in claim 1, wherein the controllerdetermines a tilt direction of the touch pen based on tilt informationof the touch pen and determines the display direction of the graphicalobject based on the tilt direction of the touch pen.
 5. The electronicapparatus as claimed in claim 4, wherein the controller controls thedisplay to change the display direction of the graphical object so thatthe tilt direction of the touch pen and the display direction of thegraphical object become opposite to each other.
 6. The electronicapparatus as claimed in claim 5, wherein the controller controls thedisplay to display the graphical object in a first layer and display ahandwriting image displayed based on the input of the touch pen in asecond layer.
 7. The electronic apparatus as claimed in claim 6, whereinthe controller controls the display to fix the second layer and changethe display direction of the graphical object in the first layer basedon the tilt direction of the touch pen.
 8. An electronic apparatuscomprising: a sensor configured to sense an input of a touch pen andoutput a signal corresponding to the input of the touch pen; a displayconfigured to include a first layer and a second layer, display agraphical object in the first layer, and display a handwriting imagebased on the input of the touch pen in the second layer; and acontroller configured to control the display to change a displaydirection of the graphical object displayed in the first layer based onthe signal output from the sensor.
 9. The electronic apparatus asclaimed in claim 8, wherein the controller determines a tilt directionof the touch pen based on the signal output from the sensor and controlsthe display to change the display direction of the graphical objectdisplayed in the first layer according to the tilt direction of thetouch pen.
 10. The electronic apparatus as claimed in claim 9, whereinthe controller controls the display to maintain a direction of thesecond layer without change despite a direction of the first layer beingchanged.
 11. A method for displaying a graphical object of an electronicapparatus, the method comprising: displaying a graphical object in adisplay; sensing an input of a touch pen; and changing a displaydirection of the graphical object displayed in the display based on theinput of the touch pen.
 12. The method as claimed in claim 11, whereinthe changing of the display direction of the graphical object comprisesdetermining tilt information of the touch pen based on a signalcorresponding to the input of the touch pen.
 13. The method as claimedin claim 11, the method further comprising: receiving a signal outputfrom the touch pen, wherein tilt information of the touch pen isdetermined based on the signal.
 14. The method as claimed in claim 11,wherein the changing of the display direction of the graphical objectcomprises determining a tilt direction of the touch pen based on tiltinformation of the touch pen and determining the display direction ofthe graphical object based on the tilt direction of the touch pen. 15.The method as claimed in claim 14, wherein the changing of the displaydirection of the graphical object comprises changing the displaydirection of the graphical object so that the tilt direction of thetouch pen and the display direction of the graphical object becomeopposite to each other.
 16. The method as claimed in claim 15, themethod further comprising: displaying a handwriting image based on theinput of the touch pen, wherein the graphical object is displayed in afirst layer, and the handwriting image displayed based on the input ofthe touch pen is displayed in a second layer.
 17. The method as claimedin claim 16, wherein the changing of the display direction of thegraphical object comprises fixing the second layer and changing thedisplay direction of the graphical object in the first layer based onthe tilt direction of the touch pen.
 18. A method for displaying agraphical object of an electronic apparatus, the method comprising:displaying a graphical object in a first layer; sensing an input of atouch pen; displaying a handwriting image in a second layer based on theinput of the touch pen; and changing a display direction of thegraphical object displayed in the first layer based on the input of thetouch pen.
 19. The method as claimed in claim 18, wherein the changingof the display direction of the graphical object comprises determining atilt direction of the touch pen based on the input of the touch pen andchanging the display direction of the graphical object displayed in thefirst layer according to the tilt direction of the touch pen.
 20. Themethod as claimed in claim 19, the method further comprising:maintaining a direction of the second layer without change despite thedisplay direction of the graphical object being changed.